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Lesson 6: complex numbers

Authored by Anonymous Anonymous

Mathematics

10th Grade

CCSS covered

Used 8+ times

Lesson 6: complex numbers
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 3+3i+82i73+3i+8-2i-7  

-4 + i

4 + i

4 - i

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 3+7i(53i)8i-3+7i-\left(-5-3i\right)-8i  

2 + 2i

-2 + 1

-1 - 2i

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 8(3+2i)+45i8(3+2i)+4-5i  

28 + 11i

1 - 3i

28 + i

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:

 10+15i(4830i)10+15i-(48-30i)  

Hint: do not forget to distribute that negative in front of the parenthesis

58 - 15i

-38 - 15i

-38 + 45i

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Simplify

 2i7i+102i-7i+10  

10 - 5i

5i

10 + 9i

10 + 5i

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Multiply the expression
 5i(2 + 4i)5i\left(2\ +\ 4i\right)  

 30i30i  

 30i330i^3  

 20 + 10i-20\ +\ 10i  

 20  10i20\ -\ 10i  

Tags

CCSS.HSN.CN.A.2

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify: 

 (7+2i)(96i)(7+2i)(9-6i)  

75-24i

63 - 24i - 12i2

51 - 24i

58 + 60i

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